Sok 

















a Yl Se 


HOLOPHANE GLASS CoO., Inc. 


342 Madison Avenue, New York, N. Y. 


HOLOPHANE REFLECTORS AND FITTINGS 
EFFECTIVE DECEMBER lst, 1925 


(Subject to Change Without Notice) 
Prepayment of Shipping Charges: No shipment will be made freight prepaid 
unless customer is billed for same. 
Cartage Charges: Not allowed. 
Standard Quantities: A standard quantity is the number specified under that 
heading in the Datalog. 
Shipping Point: All material is | shipped from our factory at Newark, Ohio, and 
is sold F.O.B. railroad cars at that point. 
Pane No extra charges will be made to cover packing on Schedules “R,” 


TERMS: 30 days net from date of invoice. 


Export: Goods shown in Datalog and all other Holophane publications, being 
patented articles, cannot be exported For export requirements communicate 
with Holophane Glass Co., Inc., 342 Madison Ave., New York City, stating the 
export country to which shipment is to be made. 

ASSORTED CRDERS: Orders amounting to $300.00 list or more, combined 
Schedules “R” and “I” will assure maximum discounts under Schedules “R” and 
“T,” provided each individual item calls for one standard quantity or more. 


*Qn assorted arders amanntine ta Standard Quantitv on some items and 











HOLOPHANE | 
DATALOG 


COMMERCIAL EDITION 


BO OLS a Nog 3.7 5-C 





CopyricHt, 1925 | 


The prices and data in this publication 
are for the convenience of customers, and 
every effort is made to avoid error, but this 
Company does not hold itself responsible for 





any errors or omissions. Both prices and 
data are subject to change without notice. 





HOLOPHANE GLASS COMPANY, INC. 
342 MADISON AVENUE . NEW YORK 


WORKS x3 i NEWARK e 8s CH, 


In CANADA 


HoLopHANE Co., Ltp., 146 KiNG STREET, W., TORONTO 

















Ory() “yIPMON ie SyIO AY “ouy Or) SSB‘) sueydooy F"LL 














HISTORY OF THE HOLOPHANE COMPANY 





HE Holophane Company was the pioneer company in the field of scientific illumina- 
tion and has been well-known in that field for more than a quarter of a century. 
The original rights to manufacture and sell the Holophane product were acquired 
in 1893 in Paris, by an American, Mr. Otis A. Mygatt, who organized, apart from the Amer- 
ican, several European companies, the successors to which are today, Holophane Limited, 
London, and Holophane, Paris. 


Shortly afterwards (1898) the Holophane Glass Company was organized and started 
business in the United States, at No. 1 Broadway, New York City. At that time, they 
manufactured reflectors and globes for use with the then prevailing carbon lamp, gas 
burners, acetylene and oil lamps. 


With the introduction of the tungsten filament lamp, the Holophane Company grew 
by leaps and bounds. The new type of lamp, although being more efficient in candle- 
power output than its predecessor, the carbon lamp, had a different type of light distri- 
bution, delivering most of its flux in horizontal directions and very little downward where 
it could be utilized. This made it more necessary than ever before, that the user of these 
new lamps choose scientifically designed and efficient reflecting equipment as available with 
Holophane reflectors. 


The large lamp interests, realizing the importance of equipping their lamps with 
efhcient reflectors, obtained from Mr. Mygatt, full sales rights to the entire Holophane 
product in the United States and for several years, operating under the name of the Holo- 
phane Works of G. E. Co., they marketed the product. 


The arrangement was continued until January 1, 1916, on which date, by mutual 
agreement the General Electric Co. relinquished all their selling rights and interests. The 
Holophane Glass Company, Inc., began again to handle the sales of their product in this 
country. 


Due to the increase in the business, under the new arrangement, it was necessary in 
1917 to erect the new factory shown on the opposite page of this book. This plant has a 
daily capacity of more than 8,000 pieces of Holophane prismatic glass. 


Throughout all of these years, the Holophane Company has never lost sight of the 
original company policy which is to produce only scientifically correct and efficient products. 


It is interesting to note that the scientific developments in all new lines during the past 
twenty years, have been under the supervision of the same chief engineer and that the man- 
ufacturing of the intricate molds required for successful operation has remained in the 
hands of the same superintendent for a like period. 


It gives the Holophane Company great pleasure to present to their customers this short 
outline of their business experience with the issuing of this new publication called— 
» of 


THE HOLOPHANE DATALOG 


Commercial Edition 


3 





ILLUMINATING ENGINEERING DATA 





His data presented in this publication have been compiled by the Holophane En- 

gineering Department from investigations, study and practice in the illumination field. 

On request, the authority for any statement or illumination value as shown, wil! be 
furnished by the Holophane Engineering Department. For this reason, the accuracy of 
these data may be absolutely relied upon for all practical illumination design work as 
applied to Holophane reflectors. 


Holophane Engineering Service: 


The Holophane Company believes that the maximum service from any lighting instal- 
lation, requires careful engineering design and planning in advance of the installation of 
equipment. To this end, the Company maintains a competent Engineering Department 
which will draw up complete illumination specifications on any lighting project without 
charge or obligation. The public is urged to take advantage of this engineering service 
to insure the selection and application of proper lighting equipment. 


Specifics : 


After a most exhaustive study of lighting requirements in all its phases, the Holophane 
Company has designed certain types of lighting equipment which are specifics for special 
classes of application. 


By designing lighting equipment to fit a predetermined set of conditions, it is possible 
to realize maximum utilization efficiency. This method of treating lighting problems is to 
be contrasted with the popular misconception that a so-called standard unit can be made 
that will fit all lighting conditions. 


All Holophane lighting units have the following characteristics: 


NS 


(1) The greatest possible utilization efficiency. 

(2) A light distribution especially adapted to each application. 

(3) Sufficient light transmitted to the ceiling to give natural daylight appearance. 
(4) No permanent depreciation of reflecting surface. 

(5) Lowest temporary depreciation (due to dust and dirt) of any lighting reflector. 


The Holophane Engineering Department will gladly furnish complete engineering 
specifications for any lighting installation, believing that this is the only way in which 
maximum economy and satisfaction can be obtained. This service is freely given in full 
faith and in unalloyed devotion to the philosophy— 


“He Profits Most Who Serves Best’ 


Intensity of Illumination: 


Daylight intensities outdoors are vastly higher than those employed in artificial light- 
ing indoors. For example: Daylight foot candle intensities of 2000 are common outdoor 
values, whereas 20 foot candles artificial lighting indoors is exceptionally high. 


High intensity illumination quickens and facilitates vision, assists in discrimination 
of fine detail and objects of low contrast either in brightness or color. High intensity is 
of advantage in all operations which are dependent upon vision. 


High intensity illumination is required to reveal detail of dark objects, more so than 
of light ones. Higher intensity of illumination is required for fine discrimination than 
for coarse discrimination. Higher intensity illumination facilitates color discrimination. 
Color discrimination disappears at very low intensities. 


A 


ILLUMINATING ENGINEERING DATA 


Throughout and even above the range of ordinary artificial lighting levels (2 to 10 


foot candles) increased intensity induces increased visual acuity. Intensities suitable for 


satisfactory and efficient vision generally are higher than those minima with which objects 
can be readily distinguished and which are prescribed for safety in the state codes. 


Extremely high intensities, beyond those to which the eye can adapt itself, such as are 
encountered in arc-welding, over-stimulate the eye’s retina and exert an injurious effect. 


Table I shows the desirable illumination that should be provided for various locations, 
and represents modern lighting practice but each installation should be made a special study. 
The Holophane Engineering Department will be glad to advise on special problems. 


Foot Candles 

Work Intensity 

Aislegys cement eed VRE ve ee Fes its ke 3 

AUT OT Van ere eee eee ee Pa NS 6 
Assembling: 

EU ULS lige eee ese ert oat ce 6 

IMiedititnie.# see 7 eee eo) 9 

(Diiers: ts? ee See es eee ee ee 12 

Etro neyo eet ee as 30 
PATICHIEOUUUTNes = ee ca een een ee 6 
Automobile Show Room................ 3 
Bakeries: 

Mixing and?! Balcine se. e 9 
Banke((General)) ss ee est ee 4 
Baniee GL) eck.) Meets ee = ae ee 10 
Barbero Opera eeoen eee 8 
Billiard Room (General) .............. 2 
Texlilneveal ARVO asta A eed ees 10 


Boiler, Engine Rooms, etc.: 


Boiler Rooms, Coal and Ash 


an dllin welhhee: 2 00) AE eee he 

Switch Boards, Engines.............- 9 
Café (General only) ......2222..4- 6 
Café with Table Lights.................. 3 
(Cards) Inoyorny (CAGE) sees Se 6 
(Clyne Pe a = a es eee SN be 3 
Construction: 

Ontdoors ©. 4s bee en eee tes 1 

1 avo Roya) ep oe te er re 3 
IE) Gc geen Pete SB Fe re Fe 10 
|Dginiihayes Sk ee eee ee ees 15 
Elevators, Freight and Passengers 3 
Rin ote Vi © gemeenee sec eee eee ea 30 
Forge Shops and Welding: 

Rough Boreinge pee see 6 

[Driney oyeeahnves eee bee pee 9 
Foundries: 

Gharcinoe oor ee 6 

ous HalVCol inc eeen ene eee 8 

Baume Vol diniod eee. keene 10 
(Sara Came eae ee a eee 4 
Cyn asian eee mere ee nes 8 
Halls, Passageways in Interiors... 3 
Hospital: 

Warcle oom) 1rieemeege see eee 0.1 

Wardelhioone brichitessteseeser 3 

Operatine@ Room) eee 50 

CONTI OT Meet sree tree 3 





TABLE I 
Foot Candles 
Work Intensity 
Hotel: 
Bedroomian cena a ee ee s 
Coridore see 3 
Dining Room (General) ............ 6 
Dining Room (with Table 
Lights)y). S208 tool ae a8. 3 
Li0 bp ye tneeen ees eet eee en 4 
Industrial Yard Thoroughfares...... % 
Inspecting: 
POU el NS eC Lillo eeene ene 6 
Medium Inspecting ................-.-- 9 
ines Inspecting: sess =e ee iy 
Extra Fine Inspecting .............. 30 
Jewelry and Watch Mfg.: 
Bench W Or Kye eee eee 30 
Laundries, Dry Cleaning: 
Wrashiin o'tehvtcoeccte re eee oe 6 
SONLIMNG ReLG an asee eee ee ore 10 
Library: 
Siiwiel  Iitoveya ny A ee ee 4 
Rescdimes ivo ome nee 6 


Reading Room (with Local)... 4 
Machine Shops: 


Rough Bench and Machine 
Workin ere 
Medium Bench and Machine 
Workisetcah 89) He. aie §e 9 
Fine Bench and Machine 
IWorketGie see ee ees 12 
Extra Fine Bench and Machine 
WOT el C teat reer ee 30 
Ofices as ee ee a ee ee re 8 
Printing Industries: 
Matrixing, Casting, etc................ 9 
Rrootereadin gn etcemcs-- eee 12 
Linotype, Monotype, ete. ........ 15 
Receiving and Shipping ................ 6 
Schools: 
STOLE Cas DACCS meee mentee ete cee eaes 2 
Stairways, Corridors, En- 
trances, Porticos, etc. ........... 4 
Boiler Rooms and Similar 
SD aACCS wee ee tee ee eee 4 
Gymnasiums, Auditoriums, As- 
sembly Rooms, Museums, 
Att Galleriegue essere 





Foot Candles 

Work Intensity 
Class, Study, Recitation Rooms, 
Libraries, Laboratories, Man- 
ual Training, Domestic Sci- 


ence (except sewing) .........-.- 8 
Sewing, Drawing, Drafting........ 12 
SUIT WAV Shoe eee eee oe ees 4 
Station: 
Nien nlite: AMOI: ys pete cease 4 
Storage and Stock Rooms: 
RouchyStock eee eee 4 
IMieqdaitimits 0G keeeseeeee eee eee ee 6 
Hine Stock 29nd ee 9 
Stores: 
Apparel et esse). eles: 12 
1g ia oe, OE Aah Ben OMI oR eA ete 12 
Bakers eae St eee eS 8 
Book, Sees. et ee 8 
IBUtchergeceece see 8 
Garp ettetec me: fobs tere ee tan 10 
Inavo® ac kegs eee eens 20 
Cigar Rett A Ma) Ee oes 12 
Glothing i = ee 17 
(Confection cuviswtes secre ee eee 8 
Wecoratoreses 2 8a e ae iy 
Dante oe es eee ee 8 
Dry 'Goods* eta ae ayes. 10 
HlOTISty sok ss524. ot ee, Sees eee el 38 
Hurtin eye eee eee 4 
[Ril gt KeS ge ts A a ee ee 2 
Grocery #6..86)..11o ee ee Oe 8 
Haberdashery esee-seee ee ees We 
Hardware yp. ese een ae 8 
Hates ee ee ee rae 12 
Hosiery and Knit Goods............ 12 
Jewelryieeets eet 12 
Weather aerate eee 10 
Millinery <eee == resent 12 
Musicwes ei nee te er 8 
Notions L) ark pee ee eee 12 
Piano thn teh Age eee 8 
SHOeS errata se eee eee UZ 
SO Wak Willd O Wane ee eee eee 50 
Stavioneryeesas Peer ere 8 
Telegraph: 
Operating Bees eet ene 12 
Telephone: 
Manuals lixchanges eet. cere 4 
Automatic Exchanges ...............- iy 
*Window (Show) ..... Se eho 50 


*Modern window lighting calls for approximately 50-foot candles for a moderately bright window and 100-foot 


candles or more for brilliant windows. 





ILLUMINATING ENGINEERING DATA 





Direction of Light: 


For utilitarian purposes, it is usually preferable to provide a dominant downward 
component of light upon the object to be viewed (preferably somewhat from one side). 
Unidirectional light unrelieved by other general light is rarely desirable. 


Shadows: 


Shadows which obscure the object impede operations and often create hazards. Un- 
natural or improper direction of light produces shadows which are likely to be misleading. 
Multiple shadows of similar degree are unnatural and confusing, especially if the shadows 
are well defined. Shadows which outline the object viewed aid in clear perception of form 
and establish perspective. 


Color: 


In general, various media reflect, absorb or transmit light selectively. For instance, 
white glass or slightly tarnished silver absorbs more blue than red rays, and the result is a 
light of a slightly yellow color. 


A color appears more saturated as its brightness is decreased and vice versa. In 
general, the appearance of a color is modified by its color environment. Hues of the longer 
wave length such as red and yellow, are usually stimulating; while those of the shorter 
wave lengths, such as green and blue, are usually depressing. 


For most utilitarian visual purposes, daylight quality is usually preferred. Colored 
lighting has effective application in colored display window lighting. In this use, color 
association is of great importance. 


Glare: 


Glare diminishes the ability to see objects and causes ocular discomfort and fatigue. 
Under some conditions, particularly in street and industrial lighting, glare constitutes a 


hazard. 


Glare is caused by extreme contrasts between a local area and the average brightness 
of the surrounding field, or less commonly, by an extreme brightness of the whole field 
of view or an image of the source reflected more or less spectrally from a polished surface. 
The effect is more pronounced when the source of glare is near the center of the visual field 
(i. e. between the angle of 60° to 90° from the vertical.) 


For a fixed position of light source with reference to the eye, glare depends upon the 
following: 
Contrast with background. 


Brightness of the source. 
Total flux in the 60° to 90° zone. 


The total flux of light in the 60° to 90° zone is a more important factor among these 
items than it is generally thought to be. 


The following chart shows graphically what part of the illumination from any given 
luminaire reaches useful points either directly from the luminaire or indirectly from the 
ceiling. 


Light delivered in the angle 60° to 90° (from axis of luminaire) is not only wasted 
light, but is harmful to clear vision, because it enters the eye in this critical angle, causing 
glare. 


ILLUMINATING ENGINEERING DATA 


1. The 0°-60° zone represents useful light that is received directly on the work. 
2. The 60°—90° zone represents light that is directed into the eye and causes glare. 


3. The 90°-180° zone represents useful light that is directed to the ceiling to be re-directed 
to the work. 


It follows that the ideal reflector would have maximum light in the 0-60° and the 
90°—180° zones, and minimum light in the 60°—90° zone. 


\\ 


SS 
SOK 
SO 
anes 


==) 
—— 
iS) 
ph 
= 


= 
Me SN 
ET ERRORS 


GN 
19",o%e' vi 
Lx) 
SAH 





Chart showing what portions of a distribution curve of a reflector are useful in delivering light directly to the work, 
indirectly to the work, and the portion of the curve that produces glare. 


Glare effects are influenced quantitatively by the immediately preceding exposure 
of the eye to light, being more pronounced if the eye is adapted to relative darkness. Glare 
is decreased as the source is removed from the center of the field of view, or as it recedes 
from the eye. Glare is also lessened by increasing the brightness of the background. 
Glaring installations are often wrongly criticized as being illuminated at too high an in- 
tensity, whereas the intensity is often not high enough. 


General Appearance of the Lighted Room: 


The importance of the general appearance of the lighted room cannot be over-estimated. 
Frequently spaces are well illuminated as regards intensity of illumination, glare and 
uniformity, but have a gloomy appearance and depressing effect on the occupants. In 
school, office and industrial work, this is particularly important because of the effect on the 
mental process due to this psychological factor. 


f? 


——$—— eee 
ILLUMINATING ENGINEERING DATA 
ee a eee 


Depreciation Factor and Maintenance: 


The efficiency of any lighting system gradually falls off due to the ageing of the lamps. 
dust accumulations on the lamp and reflector, and depreciation of the reflecting value of 
the ceiling and walls. It is important to keep the accumulated effect of this reduction 
in efficiency as low as possible and it is good practice to apply a depreciation factor to all 
illumination calculations so that the desired illumination values will be obtained after 
depreciation. If a good magnesia base paint is used on the ceiling and walls and the lamps 
and reflectors are cleaned once every two months, a depreciation of 20 per cent. (multiply- 
ing factor 1.25 should be used with all Holophane reflectors. 


It should be noted that there is no permanent depreciation of Holophane reflectors as 
the initial efficiency is restored by cleaning. 


Careful attention has been given to the question of light loss caused by dirt and dust 
accumulation on Holophane reflectors. They are designed so as to reduce this loss to a 
minimum. ‘Tests made in the Holophane laboratories and confirmed by similar tests at the 
Electrical Testing Laboratories, show that the loss of light for Holophane reflectors due to 
dust and dirt accumulations is confined to the transmitted light passing through the reflector 
to the ceiling, whereas the downward light is only slightly affected. 









y) 


WT. 

[i 
i ie HT T]} 
Tee SAAT 


sey 


Ni? 





S 
S 


| 





The above curve shows the effect of the dust The above curve shows the effect of dust 
accumulations of four months on a Holophane accumulations of eight months on Holophane 
reflector having refracting and diffusing prisms. reflector having prisms of the reflecting type. 
The full line shows the cleaned reflector and The full line shows the cleaned reflector and 
the dotted line shows the dusty reflector. the dotted line shows the dusty reflector. 


Recent data on the effect of dust and dirt on reflector equipment, reported by Anderson 
and Ketch of the National Lamp Works of the General Electric Company, before the Illu- 
minating Engineering Society, gives accurate information on the depreciation of modern 
lighting equipment due to dust and dirt and their data is reproduced in part, in the fol- 
lowing tabulation. 


It will be noted from this tabulation that Holophane reflector equipment of both the 
direct and indirect types (Items 2 and 16), compares most favorably with other reflector 


types. 


jee) 





ILLUMINATING ENGINEERING DATA 





AcTUAL DEPRECIATION OF LIGHTING EQuIPMENT as AFFECTED 
BY EQUIPMENT Desicn* 


Actual Actual 
Depreciation Depreciation 
120 Days 120 Days 
Luminaire Description Dry Fine Dust Luminaire Description Dry Fine Dust 


Frosted ball—top and _ bottom 
open 15.0 





1 Dense opal glass—clear lamp 112 9 
Semi-enclosing opal bowl with 


(in Prismatic glass—clear lamp 12.4 
diffusing plate PH? 


A\ Deep enameled steel bowl—clear 
ra. lamp 11.5 LU ‘gf Dense opal bowl 22.5 


Li) 











i ae J Enameled metal reflector with 
4 @ RLM Dome—clear lamp 12.8 12s = Boal glass hottons 26.0 
. tt. RLM Dome—bowl-enameled lamp 16.3 13 CF Mirrored Glass bowl 26.2 
se, Diffusing glob d led 
OF or pa ore Sees ian aes 22.9 14 g Clear top with bottom opening 35.6 
7 Diffusing globe—no vent 13.4 Clear top without bottom opening 15.0 
8 Diffusing globe—bottom vent DDT 16 Eg Prismatic, without bottom opening 10.1 





Coefficient of Utilization: 


The coefficient of utilization is the proportion of the total light flux emitted by the 
lamps effective on the work. The coefficient of utilization is the true measure of the 
effectiveness of a luminaire and should not be confused with such terms as ‘“‘overall 
efficiency” which are misleading. Thus it is quite possible for a lighting unit having 
an overall efficiency of 80% to have a coefficient of utilization of 70%, while another 
unit installed in the same room having as high an overall efficiency as 90% may have 
a coefficient of utilization of only 55%. 


The coefficient of utilization involves many factors, such as the room length, room 
width, the ceiling height, the reflection factor of the ceiling and walls and to a very great 
degree, the type of the lighting unit. It has been found that large rooms can be lighted 
more efficiently than small ones and that as the mounting height is increased, the efficiency 
of the system is reduced. The charts on pages 10 and 11 shows a series of values called the 
“Room Index,” for various room dimensions and mounting heights of the luminaire. These 
charts are used in conjunction with Table III to determine the coefficient of utilization of 
Holophane reflectors for various conditions of use. 


*Transaction of Illuminating Engineering Society, Anderson and Ketch, Vol. XIX No. 1, 1924. 


9 





ILLUMINATING ENGINEERING DATA 











ceminc & FT, ABOVE WORK FOR APOLLO, FILTERLITE, NO, 741 


| 


LUMINAIRE 4 FT. ABOVE WORK FOR OTHER HOLOPHANE NOS. 
| os \ 


a BEE 








TABLE II 





Luminous Flux Emitted by Mazda Lamps. 













































































& SS SS EE eee 
(Standard Lighting Service 110-125 Volts) é 
i} 
—$_—_— : ie 
= 
. *Light 8 
wee mC Lumens ‘Center S 
in Watts Length 5 ZONE 
15 135 ata 
25 240 
40 ; 410 
50 520 
60 620 e 4050 60 170 80 99 100 110 
US 920 41s ROOM LENGTH — FEET 
100 1350 5 ts 
+100 1320 4% ; 
150 2200 Sis FILTERLITE, NO 741 
ss on 2 FT ABOVE WORK FOR OTHER HOLOPHANE NOS, 
400 7000 7 
500 94.00 a 
750 14500 9% 
1000 20000 9% 
1500 33000 9% 

















ROOM WIDTH ~ FEET 


*Light center length is distance in inches from contact 
point of lamp to center of filament. 
+The new all frosted inside lamp. 


ROOM INDEX 

















The following charts show the room indices 














for various sized rooms and ceiling heights 














met with in ordinary lighting practice. It 50__60 

i r ROOM LENGTH —FEET 
should be especially noted that in the case of 
the Apollo, Filterlite and No. 741 luminaries, 
the charts refer to distances between ceiling 
and work, while in the case of other Holo- 


phane luminaires, the mounting height of the 





luminaires above the work are shown in the 





chart. In cases where the room index falls 
on one of the curved lines, the lower value 
of room index should be used. For rooms 








ROOM WIDTH — FEET 


larger than those shown on the chart, a room 
index of 5 should be used, and for rooms 
smaller than those shown on the chart, a 
room index of 1 should be used. All room 


indices of ‘“‘one” lie in the “1 zone”; “two 
in the “2 zone,” etc. 


99 





ROOM LENGTH 


10 


ROOM WIDTH — FEET 


ROOM WIDTH — FEET 


ROOM WIDTH — FEET 





ILLUMINATING ENGINEERING DATA 


CEILING 1 A, 5 FT. ABOVE WORK FOR APOLLO, FILTER! 


| 





ld ahi list ral 


LITE,NC 741 


LUMINAIRE 7 FT. ABOVE WORK FOR OTHER HOLOPHANE NOS. 












































ROOM LENGTH — FEET 








, 
CEILING 1 Qi ABOVE WORK FOR APOLLO, FILTERLITE, NO fa 








| 
LUMINAIRE 8 FT. ABOVE WORK FOR OTHER 


HOLOPHANE NOS. 



























































ROOM LENGTH —FEET 


NG 1 3.5 ABOVE WORK FOR APOLLO, 
- i 











100 110 


FILTERLITE,NO. 741 





LUMINAIRE 9 YT ABOVE WORK FOR OTHER HOLOPHANE NOS. 





{ 



































ROOM LENGTH — FRET 











1l 








CEILING 1 5 FT. ABOVE WORK FOR APOLLO, FILTERLITE,NO 41 


hae ey cate ae | . 


LUMINAIRE 1 Orr ABOVE WORK FOR OTHER HOLOPHANE NOS. 
Nl \ ' 





a SS EES ee ee 






ROOM WIDTH — FEET 



































ROOM LENGTH — FEET 


CEILING, 18 FT. ABOVE WORK FOR APOLLO, FILTERLITE,WO. 741 


LUMINAIRE 12 FT. ABOVE WORK FOR OTHER HOLOPHANE NOS. 



































ROOM WIDTH — FEET 




















ROOM LENGTH — FEET 





more 1¥ ABOVE WORK FOR APOLLO, FILTERLITE, NO. 741 


LUMINAIRE 14 FT ABOVE WORK FOR OTHER HOLOPHARE NOS. 








ROOM LENGTH — FEET 





ILLUMINATING ENGINEERING DATA 





Coefficients of Utilization: (See Page 9): 


The coefficients of utilization shown below are applicable to Holophane Reflectors for 
the ordinary room dimensions shown in the charts on Pages 10 and 11. For reflection 
factors not shown, the coefficient of utilization should be estimated from the nearest value 
given. 


Coefficient of Utilization* 
TABLE III 
Find Room Index from Charts on Pages 10 and 11. 





















































































































































Ceil- i. 
Reflection ing 50 60 70 80 
pH ROE 
-ercent. 
See Page 14 Walls} 20 | 30 | 40 | 50 |] 20 | 30 | 40 | 50] 20 | 30 | 40 | 50] 20 | 30 | 40 | 50 
Reflector Room : RT 
Type Index Coefficients of Utilization 
a h 
i, 1 FOUR MOZE OAS ORES Lin Ao om Some 
AG «| i 5 
x ii AS 150] 36s 3Sule4ie 4, bS7ay comet 40 |.42 
9 Cl L ‘ =a 
Z| 90° to a Tam. 2 45 |.47 
Tr) Sk A sey 
= TAS 3 52 |.54 
0° to 90°-60.0% 5 58 |.60 
1 36 |.38 
Fs) ly 1.5 43 |.46 
2 Eco: ico ee 2 50 |.52 
= as 3 56 |.59 
0° to 90°-63.7% 5 63 |.65 
1 40 |.42 
y, ihe 48 |.50 
z 908 a S019 2 53 |.55 
- () { 3 59 |.62 
0° to 90°-64% 5 66 |.69 
37 |.40 
an 45 |.47 
S) 
3 90° to oe 19% 2 50 |.52 
2 oe 3 .58 |.59 
0° to 90°-66% 5 .63 |.66 
40 |.42 
n 47 |.49 
. Clear [at : 9 
. LCE samp. re ~~ 
s 90° to 180°-18% 5 53 |.55 
c an 3 59 |.62 
ee 
5 65 |.68 
0° to 90°-68% 





















































*Calculated from data by Harrison and Anderson. 


12 





ILLUMINATING ENGINEERING DATA 





Coefficient of Utilization*® 


TABLE I[II—Continued 
Find Room Index from Charts on Pages 10 and 11. 








Hol. Nos. 2110-2120 | 
2130-2140-2170.2180 


Hol. Filterlite 


Hol. Nos. 621-651 | Hol. Nos. 2208-2328 | 


Hol. Nos. 622-652 


| 


Hol. No. 661 





































































































Ceil- ‘ 
Reflection ing 50 60 70 80 
bs : 
ercent. 
See Page 14 Walls} 20 | 30 | 40 | 50 | 20 | 30 | 40 | 50 | 20 | 30 | 40 | 50 | 20 | 30 | 40 | 50 
Reflector Room : ; 
Type Index Coefficients of Utilization 
1 
5 
Clear Lamp. Y 
90° to 180°-23.6% 
MY : 3 
0° to 90°-60.5% 5 
1 
Weg 
Clear Lamp. ») 
90° to 180°-57% 
= Zz 3 
ok 
0° to 90°-26% 5 
1 
— = lee 
A 9 
Clear Lamp. a 
90° to 180°-23% 
0° to 90°-58% iS; 
il 
7 1.5 
Clear Lamp. 9 
90° to 180°-24.3% 4 
Ak 3 
4 |} 
0° to 90°-70.1% 5 


é 7 
Clear Lamp. 





90° to 180°-18% 
WW 


0° to 90°-73% 


— 


Clear Lamp. 
90° to 180°-28% 





4 





t 0° to 90°-63% 
















































































*Calculated from data by Harrison and Anderson. 





ILLUMINATING ENGINEERING DATA 





Specifics vs. Standard Reflectors for Industrial Lighting: 


After a most exhaustive study of the requirements of industrial lighting in all of the 
industries, the Holophane Company has for the past five years abandoned the prevalent 
idea that a so-called standard reflector can be used for all types of service. Holophane 
reflectors for industrial use are especially designed for specific application and are in no 
sense standard for all uses. Only by designing industrial lighting equipment to fulfill the 
requirements of specific application, maximum utilization efficiency can always be 
realized.* 


All Holophane industrial lighting units have the following characteristics: 


(1) The greatest possible utilization efficiency. The light is distributed where it can 
be used by the eye to see by without wasting it. 


(2) A light distribution specially adapted to each application. 

(3) Sufficient light transmitted to the ceiling to give natural daylight appearance. 
(4) No permanent depreciation of reflecting surface. 
( 


5) “Lowest temporary depreciation (due to dust and dirt) of any industrial lighting 
reflectors. 


Some of these specifics are the C-2172 Asymmetric Unit (Page 30), the No. 651 
and No, 661 High Mounting Height Unit (Page 28), the No. 621 Localized General Light- 
ing Unit (Page 28) the Yard Lighting Unit (Page 32) and the Industrial Refractor 
Unit (Page 33). 


Reflection Factors of Walls and Ceiling: 


A perfectly white wall or ceiling surface would reflect 100% of the light which falls 
on it and an absolutely black wall would reflect no light. Between these theoretical limits 
there is a vast range of reflecting values. The best white paint reflects approximately 85% 
of the light which falls on it. 


In general it may be assumed that white paint, when new, will have a reflection factor 
of approximately 80%; light tints of yellow such as creams and ivories 70%; and so- 
called French gray 45%. 


Buildings of the “saw tooth” type have extremely low ceiling reflection values because 
of the large glass area. In like manner, walls having large glass area have a low reflection 
value. A modern industrial plant of the Fenestra window type will have an effective wall 
reflection value of approximately only 20%. A room having windows in one half of the 
wall surface would have an effective wall reflection factor of approximately one half the 
reflection value of the wall paint. 





*See Pages 8 and 9, 


HOLOPHANE REFLECTORS FOR SHOW WINDOW LIGHTING 












vat 
apy, 
uy 






; ideal Photometric curve of No. 963 with 
Photometric curve of No. 983 with 100 watt Mazda C lamp 
100 watt Mazda C lamp 


Description: 
These reflectors are designed for maximum efficiency in any show window lighting. 


Use: 

The No. 983 reflector is recommended for show window locations where angular dis- 
tribution is required, and the added refinement of the No. 922 anti-glare plate (see Page 
16) is unnecessary. 

The No. 963 reflector is recommended for high shallow windows and is also appro- 
priate for use recessed in a false ceiling. 


Spacing: 

Nos. 963 and 983 should be mounted not less than 6” from the window glass on 
centers not exceeding 18” nor less than 11”. Good practice consists of spacing on 122 
to 14” centers using 100 or 150 watt Mazda C or C-2 lamps. 


_ SCHEDULE “R” 














Approx. | i 














| List | Standard Shipping | DIMENSIONS IN INCHES Carrene 
Holo. | Price Weight | i il ee Daraps 
No eee eee Eacie Ne UenOLy Ebss ieee | | Watts 
Per Std. Pkg.) Diameter | Height | Holder | 
4 == - |- |— —}— =a |e 
963 | $3.00 15 68 | 105% | 54 | 24-H | 100-150 
*983 3.00 12 75 | 103% 6% | 24-H | 100-150 








For colored window lighting equipment see page 18. 


Note: 

It is important that the proper holders be used with Holophane reflectors. Use No. 
983 and 963 with 100 or 150 watt lamps with Form H holder such as Uno No. 504 on 
brass socket. On porcelain sockets, use Appleton holder No. 7319 or Bryant No. 444. 


15 





HOLOPHANE REFLECTORS FOR SHOW WINDOW LIGHTING 





i 


—— 





No. 944 Characteristic curves of the No. No. 922 
Completely Enclosed Type. 944 (A) and No. 922 (B). Semi-Enclosed Type. 
Description: 


Holophane Reflector No. 944 is the latest development for scientific Show Window 
Lighting and the only reflector of its kind which completely envelopes the lamp. This con- 
struction is superior to open reflectors because it reduces depreciation from dust and dirt 
to an absolute minimum, eliminates glare and reflected glare, softens shadows to a degree 
heretofore not realized and vastly improves the appearance of the show window. 


Reflector No. 944 is designed for 200 watt lamps but can be used with 100 or 150 
watt in combination with any standard socket extension similar to Benjamin No. 91, 
The unit is supplied including a brass extension heel to fit any 214” flat or Form “O” 
holder. Due to careful engineering design, it has an efhiciency equal to the best open 
reflectors. 


Holophane No. 922 is similar to No. 944, but designed for use with 100 and 150 
wait lamps. The anti-glare or diffusing piate on this reflector does not completely en- 
velop the lamp but does screen the filament from direct view of the shopper looking into 


the show window from any natural angle. This reflector should always be used with 
21,” deep or Form “H” holder. No. 922 has advantages similar to No. 944. 


Use: 


These reflectors are designed for use in deep windows, in windows of the island type, 
or in windows with open back or mirrors where open reflectors would cause reflected 
glare. 


Spacing: 


Reflectors No. 944 and No. 922 should be used on not less than 12” centers, mounted 
on the ceiling or transom bar of the window, with center of socket not less than 6° from 
the inside of plate-glass. Good practice recommends the use of units of this size on 
spacings closely approaching this 12” minim 


SCHEDULE “R” 
































Approx. 
List 7 Shipping DIMENSIONS IN INCHES Carrect 
Holo Price | Standard |) “Weight. L 
Nae ian Quantity is =. Sets 
O. Zach Lbs. Watts 
Per Std. Pkg./ Diameter | Height Holder 
922 $4.50 10 £63; 91% 7% 214-H | 100-150 
944 7.00 8 75 10 944 | 24-0 200* 








*100-150 watt use Benjamin Socket Extension. 


16 





HOLOPHANE REFLECTORS FOR SHOW WINDOW LIGHTING 










Sufficient light passes through the reflector 
to light the valance or transparent sign. 





Upward light diffused th h l 
light the Rilenaion trannies ne pee De 


Heavy pressed §lass 
reduces Breakage 
to a minimum. 


















Heavy pressed glass 
4” thick - Breakage 
reduced toarini- 









These prisms 
reflect light 
better than 
even polish: 
ed silver 
and never 
tarnish or 
peel off. 


light than 
polished 
silver — 

Nothing to 
tarnish or 






Detachable color screen throwing, light 
of any desired color’ on-window display 
cam be furnished at extra charge x 





Detachable color screen's in 4 colors. 


Holophane No. 944. Holophane No. 922 


HOLOPHANE WINDOW REFLECTORS are best because— 
1. They deliver MORE light on the display. 
2. They light the transparent sign uniformly. 
3. Nothing to tarnish or peel off. 
4. NO PERMANENT DEPRECIATION. 
5. The lamp is not seen from the street or the inside of the store. 
6. Does not change the color of the light. 
7. Color effect can be obtained by using color filters. 
8. Heavy pressed glass reduces breakage to a minimum. 
9. They cost less. 


10. Individual carton packed. 


Lz 





COLOR FILTERS FOR HOLOPHANE WINDOW REFLECTORS 





Holophane Color Filter 


Method of Attaching the Holophane 
Color Filter 


Description: 


Holophane color filter sets are made in three sizes; No. 922-B set for use with No. 
922 reflector; No. 944-B for use with No. 944 reflector; No. 983-B set for use with No. 
963 and No. 963 reflectors. 


The complete color filter set consists of one-metal mounting frame to attach to re- 
flector and four colored filters, one red, one green, one blue and one amber. Each of 
these color filters are mounted in a metal ring held in position and protected by wire 
supports so arranged as to permit expansion and contraction of the gelatin without break- 
ing. In ordering spare renewal parts, No. 922-B, No. 944-B and No, 983-B designate 
complete color sets described above. No. 922-H, No. 944-H and No. 983-H designate 
mounting frames only. No. 922-C, No. 944-C and No. 983-C followed by name of the 


color wanted indicates the color filter only in its ring. 


SCHEDULE ‘<I’ 





























Holo. Pie Standard Size 

No. Each Quantity 

922-B Som) 10 To fit No. 922 Reflector 

922-H ni 20 To fit No. 922 Reflector 

922-C fh 20 To fit No. 922-H Frame 

944-B OF lO 10 To fit No. 944 Reflector 

944-H afte 20 To fit No. 944 Reflector 

944-C athe 20 To fit No. 944-H Frame 

983-B 3.75 10 To fit Nos. 983 and 963 Reflectors 

983-H a) 20 To fit Nos. 983 and 963 Reflectors 

983-C 75 20 To fit No. 983-H Frame 

Human emotion reacts to color stimulation. A few of the best recognized reactions or associations are as follows: 

BLACK—death, sombreness. WHITE—peace, purity, cleanliness. 
RED—passion, danger, tragedy, fire. PINK—health, daintiness. 
YELLOW—comfort, cheerfulness, security. GREEN—coolness, supernaturalness. 
BLUE—power, depression, coldness, moonlight. PURPLE—tichness, splendor, luxury, royal color. 


Colored lighting can also be very appropriately used at the time of national and other holidays. 


18 





HOLOPHANE WINDOW LIGHTING 





Ideal show window lighting with Holophane window reflectors in a typical shoe store. 








Ideal show window lighting with Holophane window reflectors in a typical department store. 


The above pictures are unretouched photographs taken under their own illumina- 


tion only. 


19 





HOLOPHANE R-r ENCLOSING UNITS—REFLECTOR-REFRACTOR 





ERS ANY 
Sai 





No. 2170 and 2180 


Nos. 2110, 2120 


2130 and 2140 Characteristic distribution curve of 


Reflector-Refractor. 


Description: 


The Reflector-Refractor (R-r) is made with accurately formed prisms of the Stiletto 
type on the upper part and refracting and diffusing prisms on the lower. The entire inside 
surface is Velvet Finished and produces a high degree of diffusion. The lower opening 
is closed by inserting a removable glass diffusing cap, which permits quick lamp renewals, 
without danger of breakage. The 2170 and 2180 are furnished as one piece and do not 
have this feature. 


Use: 


These enclosing units are designed for use in schools, public buildings, stores and 
offices. Nos. 2110 and 2120 are used extensively in industrial lighting as well. Each 
unit consists of an upper reflector and a lower refractor (diffusing). The R-r has the 
efficiency of the best open reflectors, and in addition all the other advantages of enclosing 
units, such as low brightness and protection from dirt accumulation. For complete fixtures 
see Page 21]. 

Spacing: 


Not to exceed twice the mounting height. 


Utilization Factor: 


See Engineering Data, Page 13. 


SCHEDULE “R” 





























Holo. List Standard Sperx Dimensions IN INcHEs Correct 
No. Price oteneat Weight Lamps 
Each | Quantity Lbs. Watts 
Per Std. Qt. | Diameter Height Holder 
ras $3.00 12 35 7% 614 244-0 (63) 
2120 4.50 8 48 934 734 3144-0 | 100-150 
2130 10.50 4 48 11% 934 4 200 
2140-4” 15.00 2 04 14 10% 4 300-500 
2140-6” 15,00 3 54 14 10% 6 3800-500 
2170 4.50 8 47 97% 75% 4 100-150 
2180 10.50 7 4 48 12 914 5 200 











Regularly furnished Velvet Finish. 


20 


HOLOPHANE R-r ENCLOSING UNITS—COMPLETE LUMINAIRES 








Suspension Type Ceiling Type 
(S) (C) 





Description: 

These fixtures are made of heavy gauge brass with E. S. Bronze finish as standard. 
They are equipped with canopy strap for mounting. Shipped including porcelain socket 
with quick wiring arrangement. 

The decoration on these fixtures in both ceiling and suspension type consists of an 
embossing to harmonize with the design of the glassware. This decoration 1s sufficiently 
simple and dignified to be used on commercial work and sufficiently ornamental to be used 
in those installations where some degree of fixture decoration is desirable. 

Use and Spacing: See Page 20. 
Utilization Factors: See Engineering Data, Page 13. 


SCHEDULE ‘R” 









































Approx. Correct 
Holo. List Shipping DIMENSIONS IN INCHES Lamps 
No. Price Standard Weight Watts 
Each Quantity Lbs. 
Per Std. Qt. Diameter Height 
S-2110) $7.80 12 57 7%, 30 75 
C-2110 5.80 12 53 7% 1014 18 
S-2120) 9.50 8 64 934 31 100-150 
C-2120 7.50 8 60 934 11% 100-150 
S-2130) 16.00 a 54 11% 321% 200 
G-2130)) 14.00 4 48 11% 1314 200 
S-2140-4"|| 22.00 3 61 14 3414 300-500 
S-2140-6” | 22.00 3 61 14 341% 300-500 
C-2140-4’’ | 20.00 3 60 14 14% 300—500 
C-2140-6'";| 20.00 3 60 14 154% 300-500 
pea 10.00 8 55 9% 30% 100-150 
C-21705| 8.00 8 53 ix 11% 100-150 
Bie eat 16.50 + 599) 12 33 200 
C-2180 14.50 4 54 12 133% 200 
S indicates Suspension type. C indicates Ceiling type, 
Quotation on special fixture finish furnished on request. Extra chain 40 cents per foot list. 


NOTE: These numbers include glassware. When ordering fixtures only specify by Cat. No. “less classware.” 


21 


HOLOPHANE FILTERLITE (INDIRECT) LUMINAIRE 





+The Standard Holophane Filter- 
lite, Ceiling Type 








= CF-100-200-300 
: tThe Holophane Filterlite with one of 
ae eeceee Ue AES the ornamental fixtures designed and 
te 7.100.200.3006 manufactured for Holophane exclu- 
asi sively by famous workers in metal. 
Description: 


The Filterlite is the latest and most efficient enclosing unit of the indirect lighting 
type. It is made two-piece, fastened together with spring steel clips and is shipped assembled. 
In design it represents a new departure. All the prismatic surfaces are on the inside and 
all outside surfaces are entirely smooth. Therefore, depreciation due to dirt accumulation 
is reduced to an absolute minimum. (See page 9, item 16.) 


The upper part of the unit slopes sharply which again helps to make this unit dust 
resisting. A portion of the lower member has a white glass insert inside which acts as a 
diffuse reflector and reduces the brightness of the lighted unit. 


Refracting prisms on the upper part of the lower member also redirect the light 
upward. The upper member has diffusing prisms to insure uniform illumination over a 
wide area on the ceiling. 69% of the light is directed upwards and 31% downwards. 


The fixtures are of special design to harmonize with the pattern of the glass and are 
made of heavy gauge drawn brass. These fixtures are equipped with porcelain sockets. 
A %” hickey is furnished on suspension type, permitting installation on outlet box with fix- 
ture stud. Canopy strap construction on ceiling type. 


The F-100 has a 4” fitter, thus permitting use of 100 or 150 watt Mazda lamp maxi- 
mum. The F-200 and F-300 have 5%” fitter, thus permitting the use of 200 or 300 watt 
lamps maximum. ‘This prevents using oversized lamps to the detriment of the installation. 


+For prices see page 23. 
Price upon request. 


22 


HOLOPHANE FILTERLITE (INDIRECT) LUMINAIRE 





a 
SF 


oe 





V4 


The above diagrams show the proper 
lamp positions in the Holophane 
Filterlite. 





Characteristic distribution curve of 
the Holophane Filterlite 
Spacing: 


The spread of the light on the ceiling from the Filterlite is uniform without sharp light 
cut off. For this reason the spacing of units is governed by the amount of light required 
for the work. In most instances from 1 to 3 watts per square foot will be required. Good 
practice limits the spacing of units to 15 feet on centers or less. 


The ceiling type Filterlite is strongly recommended for all ordinary height 
rooms (under 13 feet). 


Use: 


The Holophane Filterlite will be reserved for high-class installations, preferably those 
where the luminaire is specified by the architect or engineer. 


Utilization Factor: 
See Engineering Data, Page 13. 


SCHEDULE, =S” 




















Approx. 
List See naeed Shipping Dimenstons 1n INcHES | Correct 
Holo. Price Q sant Weight Lamps 
No. Eschve laa cea Lbs. _ Overall Watts 
Each Diameter Length 
Filterlite F-100 | $14.00 1 15 12 | 37 | 100-150 
Vilterlite CF-100 12.50 | if 15s) 12 175% | 100-150 
Filterlite F-200 19.00 | i 23 14 40 200 
Filterlite CF-200 18.00 ] 23 14 2044 | 200 
Filterlite F-35300 20.00 1 23 14 40) 300 
Filterlite CF-300 19.00 ] | 23 14 2018 300 
7322} 9.00 ] | 13 12 10% | 100-150 
7344* 13.00 1 | 20 | 14 1214 | 200-300 
| 











+Glass only for 100-150 watt size. 

*Glass only for 200 and 300 size. Extra chain at 40 cents per foot list. 

Wire included. Canopy with knockout for pull chain switch. 

F indicates suspension type. 

CF indicates ceiling type. 

Standard finish of fixture is Statuary Bronze, but Dull Brass will be furnished at same price upon request, sub- 


ject to slightly delayed shipment. 


23 





HOLOPHANE R-r ENCLOSING UNITS—REFLECTOR-REFRACTOR 








Ideal Reflector-Refractor illumination in a typical auditorium 


The above pictures are unretouched photographs taken under their own illumination 
only. 


No 
— 





HOLOPHANE FILTERLITE (INDIRECT) LUMINAIRE 





Ideal Filterlite illumination in a rug department. 





Ideal Filterlite illumination in the drafting room of the United Elec. Lt. & Pwr. Co., N. Y. 


The above pictures are unretouched photographs taken under their own illumination 


only. 
25 


HOLOPHANE XTRA-FICIENCY REFLECTORS FOR MAZDA B LAMPS 





iff . 
/ j 
Hy ||, 
f i 
/ 
| 
{ 
ij / i | 
i} 


Ud Ltt ii) a 











Extensive Type 
WE 


| 
ei 





Characteristic distribution curve of Characteristic distribution curve of Characteristic distribution curve of 
Type XI Type XF Type 

Description: 

Holophane Xtra-Ficiency reflectors are designed for use with Mazda B lamps. These 

reflectors have been on the market for years and are universally used and known. 

Use: 

These reflectors should be used where a low intensity of illumination is required, such 

as in storage spaces, warehouses, locker rooms, stairways, etc. 

Spacing: 

The ratio of the spacing to the mounting height above the work should not exceed 2 

for XE Type, 114 for XI Type and 34 for XF Type. 

Utilization Factor: 

See Engineering Data, Page 12. 


SCHEDULE “R” 




















Approx. 
Holo. List Seandard avian: DIMENSIONS In EXC Correct 
Nov) DEBS) Ouanstee nes em 
Per Std. Qt. | Diameter | Height Holder 

XE-25 | $0.90 20 35 61% 41, | 214-0 25 
XE-40 Uh Os) 10 20 6% 434 214-0 40 
XE-60 1515 10 20 75% 214-0 60 
XI -25 . 90 20 35 634 4l¢ 214-0 25 
XI -40 105 10 20 73% 454 214-0 40 
XI -60 pas) 10 20 734 5 214-0 60 
XF-25 . 90 20 OD 7 4 2144-0 20 
XF-40 b05 10 20 734 434 214-0 40 
XF-60 Llp 10 25 814 434 214-0 60 





























Regularly furnished clear. For Velvet Finish add 10% to the list price. 


26 





HOLOPHANE SUPER-FICIENCY REFLECTORS FOR MAZDA C LAMPS 


y 
: . 
By 
WA AA, 
AAS 
\" 
¥ \\ 
\\ \ SRN 
\ 





CSE Type CSI Type 


Super-Ficiency Intensive 


Ujpoeeas: 
LOSSES 


— 





Characteristic distribution curve of Characteristic distribution curve of 


CSE Type Reflector CSI Type Reflector 


Description: 


Holophane Super-Ficiency Reflectors are designed to give maximum efficiency with 
Mazda C lamps, wherever open reflectors can be used. 


Use: 

Holophane Super-Ficiency Reflectors are used extensively in the industrial plants, 
especially in the textile field, or wherever high efficiency is required. 
Spacing: 

CSE Type-—Spacing should not exceed twice the mounting height. CSI Type—Spacing 
should not exceed 14 times the mounting height. 
Utilization Factor: 

See Engineering Data, Page 12. 

SCHEDULE “R” 























Approx. ene * 
Holo. List ee a Shipping DIMENSIONS IN INCHES Conrect 
easy ect Gs tae 
Per Std. Qt. | Diameter | Height Holder 

CSE- 75 $1.40 10 35 7% 5K 214-0 75 
CSE-100 1.75 10 40 8l4 6 2144-H | 100-150 
CSE-200 3.40 10 65 934 734 3l4-A 200 
CSI - 75 1.40 10 30 8 51% 214-0 79 
CSI -100 1275 10 40 85% 61% 214-H | 100-150 
CSI -200 3.40 10 65 10% 734 314-A 200 





























Regularly furnished in Velvet Finish. | Also made in both types for 300, 400 and 500 watt lamps. Write for prices. 
It is imperative that proper holders be used with these reflectors. 


27 





HOLOPHANE MILL TYPE UNITS FOR INDUSTRIAL PLANTS 


MI 


/ 





Characteristic distribution curve of 
Nos. 621, 651 and 661 


Characteristic distribution curve of 
No. 622 and 652 





(Gh ; 
Nos. 621, 651 and 661 Intensive Type 
Nos. 622 and 652 Extensive Type 
Description 

These Holophane Mill Type units for industrial plants are made with a special, rugged 
reflector, supported and protected by a steel tripod which grips the reflector from below on 
the ice tong principle, so that the reflector can be easily removed for cleaning without re- 
moving the lamp. The tripod is equipped with a sliding grip sleeve, secured by two set 
screws, so that the reflector can be set at the proper focus for several sizes of lamps accord- 
ing to markings provided on the stem. This construction provides extreme flexibility. 
Standard finish is olive drab enamel. 

Use: 

The 621 and 651 are used for intensive general lighting and for localized group 
lighting. The 622 and 652 are used for general lighting where high illumination on a 
vertical surface is required. The 661 is used where the units must be mounted at extreme 
heights as over craneways and in foundries. 

Spacing: 621-651-661, not to exceed the mounting height above work. 622-652, not 
to exceed twice the mounting height above the work. 
Utilization Factor: See Engineering Data, Page 13. 

SCHEDULE ‘“T”’ 



































Approx. 

Hole. eat Sided Sung nie DIMENSIONS IN INCHES conn 

oO. rice . el mps 

Each Quantity ae Overall Watts 

Per Std. Qt. | Diameter Length 

621 $7.50 5 120 11% 2014 75-100 
*6521 5.00 5 85 113% 5% 150-200 
+ 651 9.50 5 124 12% 22 200-300 
*6551 6.00 5 90 123% 534 400-500 
+ 661 20.00 5 128 154% 28 500-750 

*6561 12.00 5 105 15 6% 1000 
622 7.50 5 100 11% 2014 75-100 
*6522 5.00 5 85 113% 67% 150-200 
652 9.50 5 112 12% 22 200-300 
*6552 6.00 5 90 1234 72% 400—500 














*Nos. 6521, 6551 and 6561 are glass only for Nos. 621, 651 and 661 respectively. 

*Nos. 6522 and 6552 are glass only for Nos. 622 and 652 respectively. 

These fixtures regularly furnished with 7-inch stem; special lengths furnished on request with extra charge. 
;+Aluminum covers spun on 621, 651, and 661 will be furnished at an extra charge of $3.50 list. 


28 


MILL TYPE UNITS FOR INDUSTRIAL PLANTS 


ANE 


HOLOPH 


‘AyuO UOT]RUTUINTTI UMO Tay) 
[ SN ey 


‘1ZO “ON, SLOJOAHoI aurydojofy UIT AY 
qa LAV 


Jopun udyP] sydeisojoyd Pp 























LNAWHSITAVISY INIDNIYG V NI ONILHOIT 


“199 “ON SIOJIIYOY aueydooy ALAY 
YWALAV 


dYOnoJoUN oTe sornjord 


‘S10 ]O0ffol 





dNO0ud*‘) CAZITVOO'T 


*‘SIOJIIHfol 


[eB Joa 


AYOWHE 


OA oq e 


UT AN 


Jl 


[ 


L 


[ 


4 





[eljou 


AOFM 


UITAY 
































AUGNNOY V NI SLHOIAG ONILNAOJL 


HOF] WOU. ONILHOTT 





29 





HOLOPHANE ASYMMETRIC UNI? 





| 
I 
| 


ST 
BR \\\ \ 
SAN 





Characteristic distribution curve 
of No. 2172 in a plane across the 
corridor 


Characteristic distribution curve 
of No. 2172 in a plane along the 
corridor 





No. C-2172 


For aisles, corridors and similar locations where the length of the area greatly ex- 
ceeds the width. 
Description: 

The No. C-2172 Unit is similar in shape and general construction to the enclosing 
Reflector-Refractor No. C-2170. The prism construction on the lower surface is designed 
to give an asymmetric light distribution required for corridor lighting. An arrow is 
moulded as an integral part of the lower surface of the unit, showing the proper orientation 
of the reflector. Chain hangers should not be used as it is essential that the unit can not 
turn out of correct position. 


Use: 


In all locations such as corridors, aisles, passageways and similar places having ex- 
treme length in relation to the width, it has been necessary in the past to use lighting units 
giving a symmetrical distribution because there was no unit available giving the proper 
type of asymmetric distribution. To meet this requirement, the asymmetric unit No. C-2172 
has been designed, giving an extensive distribution of light along the long dimension and 
an intensive distribution of light across the short dimension of the interior. With this unit, 
uniform illumination can be obtained in such locations. 

This asymmetric unit is an admirable example of how Holophane lighting units have 
their light distributions moulded to fit particular types of interiors so as to give the greatest 
possible utilization efficiency. 

Spacing: 

The practical advantage of the asymmetric No. C-2172 over symmetric units for the 
illumination of aisles, corridors and similar spaces is that uniform illumination can be 
obtained when the units are spaced on centers 244 times the mounting height. This is to 
be contrasted with the alternate areas of high and low intensity obtained from symmetrical 
units spaced on centers as close as 1.5 times the mounting height. 


SCHEDULE ‘R” 





























Approx. s 
List Shipping DIMENSIONS IN INCHES Corrert 
Holo Price tandard Weight Lamps 
No. Each Quantity thes Watts 
Per Std. Pkg.| Diameter | Height Holder 
*TC-2172 $8. 00 8 53 97% 1134 4 100-150 
ee a pe 4.50 8 47 G74 7% 4 100-150 











*75 watt can be used with Benjamin Socket Extension. 
tComplete ceiling type luminaire. 
+Glassware only. 


30 





HOLOPHANE HIGH EFFICIENCY VAPOR-PROOF GLOBES 





Characteristic distribution curve 


of No. 02338 


| mee cca mM 


LN 




















Characteristic distribution curves 


of No. 2328 (A) and No. 2208 (B) No. 02338 





No, 2323 


Description: 

In the past, all vapor-proof lighting fittings have been equipped with clear glass 
globes, and in order to obtain effective lighting, it has been necessary to place a reflector 
over the glass globe or else use an abnormal wattage per square foot of floor area. Holo- 
phane Vapor-proof globes are combined vapor-proof globes and reflectors, fulfilling per- 
fectly the functions of each. 

Reflecting prisms accurately formed on the upper portion redirect the light from the 
lamp in downward directions and the refracting and diffusing prisms on the lower surface 
distribute the light in useful directions in the desired proportions, so that the resulting illu- 
mination on the work will be uniform. These reflector globes should be used on vapor 
and gas proof condulets or fittings of Holophane, Crouse-Hinds, Benjamin, VV., Russell & 
Stoll and other makes. 


Use: 

These reflector globes should be used in Acid Plants, Paint Shops, Electroplating 
Shops, Pickling Departments, Oil Refineries, Powder Plants, Grain. Elevators, Moving Pic- 
ture Film Rooms, Shower Baths and similar places where corrosive or explosive fumes and 
moisture prohibit the use of lights other than those of the vapor-proof type. 

Spacing: 
For uniform illumination, the spacing should not exceed 2.5 times the mounting height 


for No. 2328 and No. 2208, and 1 times the mounting height for No. 02338. 
Utilization Factor: See Engineering Data, Page 13. 


SCHEDULE “T’ 


























Approx. 
= List en iaa Shinping DIMENSIONS IN INCHES Correct 
; rice : a 
Net Each | Quantity | “T ps, | Watts 
Per Std. Qt. | Diameter Height Holder 
*2208 $2.00 20 68 6364 =| «634 V.V. No.5001 | 40-50-60 
| Crouse-Hindst 75- 
*2328 3.00 15 74 744 | 84% V.H. fittings 100-150 
02328 9.50 6 80 714 1014 75- 
| 100-150 
1*2338 6.00 6 74 103g | 83% f Special 200 
102338 14.00 6 82 103% 13. || Holophane 200 




















tAlso Benjamin No. 1515, V. V. No. 5002, and Veco No. OVP-116. 


*Glass only. * 
+Also furnished with aluminum cover spun over reflector at $3.50 list additional. 


31 





HOLOPHANE HEAVY DUTY REFRACTOR UNITS FOR YARD LIGHTING 


7 


KY 
Ly 


<P 


> 


\\ 

vn, 

XL > 
SY 


\) 
SY 





a Characteristic distribution curve of 
Nos. 04338-C, 04376-C Nos. 04338-C and 04433-C No. 04433-C 
Description: 


Holophane Refractor Units Nos. 04338-C, 04376-C and 04433-C are complete with 
No. 4338, 4376 or 4433 refractors respectively, hot galvanized iron dust tight refractor 
holder, easily adjustable mogul socket and *4-inch coupling or eye bolt. All of these re- 
{ractors are completely closed. For complete information on these Holophane refractors 
write for Bulletin 351. 


Use: 


The Nos. 04338-C and 04433-C have been designed especially for the illumination of 
large open spaces such as industrial yards, coal storage yards, etc. The No. 04376 gives 
a two-way light distribution and has been designed for the illumination of industrial road 
ways, railway yards, dams, etc. 

Spacing: 

In general, the angle of maximum candle-power at 75 or 80 degrees is used for out- 

door illumination, with a spacing of units 8 to 12 times the mounting height. -The 65 to 


70 degree angles of maximum candle-power are for indoor use with spacing 4 to 6 times 
the mounting height. 


Utilization Factor: 


Write Holophane Engineering Department for special information. 


SCHEDULE “S” 



































List hake sre DIMENSIONS IN INCHES Correct 
OOS genes erent Gee a 
| Per Std. Qt. | Diameter Height 
04338-C | $24.00 8 294 Ml 181% 200-300 
*04376-C 25.00 8 294 it 1844 200-300 
04433-C 34.00 8 300 14 2234 500 
[4338 7.50 8 90 84 72% 200-300 
1*4376 8.50 8 90 814 7% 200-300 
+4433 18.00 3 150 1134 934 500 











*Two Way Refractor. 
7Glass only. 


32 


HOLOPHANE INDUSTRIAL REFRACTOR UNIT 


\\ 





Characteristic distribution curve 


of No. 830 


Description: 


Holophane No. 830 and No. 832 industrial refractors are constructed on the well known 
two-piece refractor principle with smooth exposed surfaces inside and out. The hood is made 
of heavy gauge spun copper with medium base porcelain socket arranged for 1 inch pipe 
suspension. 


Use: 


Industrial “‘night lighting” or lighting after working hours is needed to enable the 
watchman to detect any irregularity. For his O. K. report to be of value, the watchman 
must be able to see into all parts of the room. It follows therefore that uniform illumina- 
tion is absolutely necessary even though it be of low intensity (approximately 0.25 foot 
candles). Alternate spaces of light and darkness as obtained with ordinary systems are 
only sufficient to enable the watchman to walk without danger of falling, but will not enable 
him to detect irregularities. 


No. 830 and No. 832 are also especially suitable for use over exits on the yard side to 
illuminate the yard space adjacent to the door, when there is no provision made for a 
regular system of yard illumination. 


Special Use: 

These units are especially appropriate for the lighting of gasoline and oil filling 
stations. Write to Holophane Engineering Department for spacing and mounting 
data. 

Spacing: 


For uniform illumination the units should be spaced on centers 6 times the mounting 




















height. For ordinary ceiling heights (12 feet), the units can be spaced on 60 foot centers. 
SCHEDULE ‘“S” 
A Ke Correct 
Holo List a | Shipping Dimensions IN INCHES Lamps 
No Price Stee | Weight Watts 
Hach Quantity | Lhe 
| Per Std. Qt. | Diameter Height 
830 $8.50 200mer 2126 7 | 9%  |75-100-150 
*4337 3.950 20 90 61% 47% 75-100-150 
832 12.00 10 87 gig | 1154 200 
*4334 5.00 10 65 7% 614 200 








*Glass only. 


33 





HOLOPHANE HEAVY DUTY AND INDUSTRIAL REFRACTOR UNITS 








Ideal illumination of a gas filling station. 


The above picture is taken by daylight to show the application of Holophane No. 830 
units to gas filling stations. 





Ideal yard illumination. 


The above picture is an unretouched photograph taken under its own illumination only. 


34, 





HOLOPHANE REFLECTORS FOR RAILROAD LIGHTING 


ee a 


\ 





Distribution curve of Distribution curve of 
No. 18226 No. 18134 


Description: 


These reflectors have been designed to meet the special requirements of service specified 
by Railroad Engineers and to give the proper lamp filament positions when used with 
fixtures and lamps of the railway type. 


Use: 


Nos. 18226 and 18246 should be used for center deck lighting and No. 18221 for 
half deck lighting. Nos. 18102, 18134 and 18136 have been designed for electric car 
lighting. 


For special recommendations or engineering advice write to Holophane Engineering 


Dept., New York City. 
SCHEDULE “R” 























A . 
Ss hist nik Shipping DIMENSIONS IN INCHES Correct 
’ : ei 
Shp Each | Quantity ibe Watts 
Per Std. Pkg.| Diameter | Height Holder 

18102 $1.50 20 75 814 534 2144 94 
18134 1.05 40 21 (i 4l4 2144 23-36 
18136 thew 30 70 7 5% 214 56 
18221 1.00 30 68 614 4% 244 25 
18226 2.60 20 91 834 6% 244 50 
18246 4.45 8 67 1038 7 4% 50 




















For Velvet Finish add 10% to above list prices. 


35 


HOLOPHANE SPECIAL SERVICE REFLECTORS 


| 
/ Pips 
; sete LN 

; “ 4 





No. 3137 No. 5718 No. 18105 





Use: 
No. 981 is recommended for cove lighting and window lighting when 60 watt Mazda 


B or 75 watt Mazda C lamps are used. 


No. 9210 is recommended for lighting certain types of Jacquard Looms in silk mills 
and for many other places where intensive local lighting is necessary. Furnished also with 


paper or celluloid cover. 


No. 5718 (U.S. Navy No. 2034-L) is designed for use with the Navy standard steam- 
tight fittings for use on shipboard for deck lighting. 


No. 16105 and No. 3137 are designed for lighting the interior of auto buses. 


SCHEDULES Rae 

















Tak ee DIMENSIONS IN INCHES Ctent 
Holo. Price Standard Weight Lamps 
No. Each Quantity Lbs. Watts 
Per Std. Pkg.| Diameter | Height Holder 
981 $2.00 30 (i: 85% 5 2144-0 60-75 
3137 60 190 85 234 234 Dy 2lep.Auto 
5718 60 40 85 44 5 INGVYOUd| ses eis 
9210 1.40 30 85 10 5 214-0 60 
9210-P* 2.00 30 85 10 5 214-0 60 
9210-Ct 9.55 30 85 10 5 214-0 60 
18105 70 95 78 434 2i¢ 214 21cp.Auto 
































*Paper cover included. 
+Celluloid cover included. 


Reflectors for Automobile Service: 


The Holophane Company manufactures a complete line of glassware for automobile 
service, including headlight lenses and glass for illuminating closed car interiors, buses, 


tail lights, parking lights, ete. 


Special molds to conform to specification can be built and reserved for customers 
requiring private or exclusive patterns. 


Estimates on such molds and glassware will be furnished on request. 





HOLDERS FOR HOLOPHANE REFLECTORS 








Us 


Form O Uno No. 502 and 
Uno 506 Holder 








Bryant No. 444 
Sa 


Form H Uno No. 504 Holder Appleton No. 7319 Holder 


Holder HDH Holder HDA 






ne 
Ra 


It is imperative that proper holders be used with Holophane Reflectors. 


























Holo. List Diam. in 

No. Fn ee aor i Schedule Inches Position 
HDH} $1.15 30 I 214 H 
HDAt 1.25 30 I 314 A 
UNO-502 £25 50 iL 244° O 
UNO-504 Pa0 50 R 214 H 
UNO-506 .50 50 R 314 O 
ave 75 30 R 314 A 
ae 
No. 7319 . 60 50 R 214 H 
Bryant 444* . 60 50 R 2144 H 
Bryant 443 .60 50 R 214 O 








*Appleton No. 7319 and Bryant No. 444 are 2% Form H holders for use on porcelain sockets. 
*HDA and HDH price includes porcelain socket. 


Use of HDH and HDA Holders: 


These socket holders are of very rugged construction consisting of heavy porcelain 
mill type socket with 12 inch thread for mounting on conduit. They can be bushed for 
drop cord service. The holder part is made of sherardized metal to resist corrosion and is 
designed to grip the reflector heel and to be locked into position by turning an elliptical 
ring. These are especially recommended for use with No. 922, 983, 963, CSE-100, and 
-200 and CSI-100 and -200 reflectors. 


37 


A Few Prominent Users of Holophane 
Include the Following: 


SHOW WINDOWS 


Famous & Barr Co., St. Louis, Mo. 

Rogers Peet & Co. Stores, New York. 

Gimbel Bros., New York and Milwaukee, Wis. 

The Shepard Company, Providence, R. I. 

The White House, San Francisco, Cal. 

The Avedon Company, Fifth Ave., New York, 

The Kraus Company, New Orleans, La. 

Scruggs, Vandervoort & Barney, St. Louis, Mo. 

Macullar Parker Co., Boston, Mass. 

Nash Motor Car Co., Broadway, New York. 

Hudson-Essex Motor Car Co., Broadway, New 
York. 

Peerless Motor Car Co., Broadway, New York. 

New York Edison Company, New York. 

Hartford Electric Light Co., Hartford, Conn. 

Brooklyn Edison Co,, Brooklyn, New York. 

Chickering Studios, New York. 

Buffalo General Electric Co., Buffalo, N. Y. 

F. L. Lazarus Company, Columbus. O, 

Carey Stores, Grand Central Terminal, New York. 

Paige Sales & Service Co., Detroit, Mich. 

The Outlet Co., Providence, R. I. 

The Boston Herald, Boston, Mass. 

Huylers Candy Shops, Boston, Mass. 

Woolworth 5 and 10c, Stores. 

Albert Steiger Co., Springfield, Mass. 

Nat Kaiser & Co., Atlanta, Ga. 


STORES 
Gotham Hosiery Store, New York, N. Y. 


United Cigar Stores. 

Liggetts Drug Stores. 

Piggly Wiggly Stores. 

National Drug Stores. 

Mirror Candy Stores. 

Schulte Cigar Stores. 

Stetson Shoe Shops. 

Regal Shoe Stores, 

The Emporium, Paterson, N. J. 

Buick Show Room, Atlanta, Ga. 
Browning King Co., Milwaukee, Wis. 
Liggett’s Drug Store, Toronto, Canada. 
Mullins Dept. Store, Wilmington, Del. 
Fisher Furniture Co., Milwaukee, Wis. 


Willys-Overland Co., Detroit, Mich. 


OFFICES 


Purina Mills, St. Louis, Mo, 
Burroughs Adding Machine Co., Detroit, Mich. 
Victor Talking Machine Co., Camden, N. J. 
Beacon Trust Company, Boston, Mass. 
State Mutual Life Assurance Co., Worcester, 
Mass. 
Land Title & Trust Bldg., Philadelphia, Pa. 
N. Y. Life Insurance Co., New York, N. Y. 
Cleveland Plain Dealer Bldg., Cleveland, O. 
Prudential Life Insurance Co., Newark, N. J. 
United Electric Lt. & Pr. Co., New York. 
Narragansett Elec, Ltg. Co., Providence, R. I. 
Insurance Co. of North America, Philadelphia, Pa. 
Commercial Trust Bldg., Philadelphia, Pa. 
Hartford Connecticut Trust Co., Hartford, Conn. 
IlHuminating Bldg., Cleveland, O. 
Land Security Bldg., Cleveland, O. 
Army & Navy Bldg., Washington, D. C. 
Loose-Wiles Biscuit Co., Boston, Mass. 
Hershey Chocolate Co., Hershey, Pa. 
Milwaukee Paper Box Co., Milwaukee, Wis. 


38 


INDUSTRIAL 


Merrimac Chemical Co., Charlestown, Mass. 

International Motor (Mack Truck) Co., Plain- 
field, N. J. 

Diamond State Fibre Co., Bridgeport, Pa. 

Pa. R. R., Paoli Shops, Paoli, Pa. 

Ford Motor Co., Dearborn, Mich. (Engineering 
Bldg. and Steel Mill). 

Buick Motor Co., Flint, Mich. (Yards and Foun- 
dry). 

Studebaker Motor Co., South Bend, Ind. (Foun- 
dry) 

Chevrolet Motor Co., Tarrytown, N. Y. 

Gillette Safety Razor Co., Boston. 

Royal Vacuum Cleaner Co., Cleveland, Ohio. 

Victor Talking Machine Co., Camden, N. J. 

KE. I. DuPont de Nemours & Co., (Dye, Powder 
and Acid Plants) 

Fisher Body Co., Detroit, Mich. and Cleveland, O. 

A. G. Spaulding & Bros., Chicopee, Mass. 

Philadelphia & Reading Railroad, Camden, N. J., 
Terminal. 

Hog Island Shipyards, Philadelphia, Pa. 

Textile Dyeing Company of America, Paterson, 


John A. Roebling Sons Company, Trenton, N. J. 

Cahokia Station of Union Electric Light & Power 
Co., St. Louis (Turbine Room). 

Arohnson Silk Mill, Coatesville, Penna. 

Aluminum Company of America. 

American Cotton Oil Company. 

American Engineering Company, Philadelphia. 

American Steel & Wire Company, New Haven. 

Buick Motor Co., Flint, Mich. 

Bush Terminal, Brooklyn, N. Y. 

Durant Motor Company. 

Fisk Rubber Company, Chicopee Falls, Mass. 

Pennsylvania Railroad, Philadelphia Yards. 

Submarine Boat Ship Yard, Newark, N. J. 

Bethlehem Steel Corp. 


SCHOOLS 


Philadelphia Public Schools. 

Milwaukee Public Schools. 

Milwaukee School of Engineering. 

New York City Public Schools. 

Thompson Institute, Yonkers, N. Y. 

Detroit Public Schools. 

St. Benedict’s College, Newark, N. J. 

Marquette University. 

North Dallas High School, Dallas, Texas. 

Hartford High School, Hartford, Conn, 

Shelton High School, Bristol, Conn. 

English High School, Waterbury, Conn. 

Continuation School, Milwaukee, Wisc. 

Yale University, New Haven, Conn. 

McGill University, Montreal, Canada. 

University of Minnesota, Library Bldg. 

Smith College, Northampton, Mass. 

Stal Cleveland Junior High School, Zanesville, 

rio. 

Theodore Roosevelt Junior High School, Zanes- 

ville, Ohio. 


HOSPITALS 


Wards Island Hospital, N. Y. 

Westfield State Sanatorium, Westfield, Mass. 
Newark Industrial Clinic, Newark, N. J. 

U. S. War Ships Operating Room. 
Vanderbilt University Hospital. 

King’s Park Hospital. 


HOLOPHANE DATALOG 


















































INDEX 
List | ote List fe 

Holophane No. ea Sched. Crane Page Holophane No. oe Sched. lon age 
XE-25. . $0.90 R 20 26 | C-2180 14.50 R Ata. Ol 
XI-25 . : .90 R 20 26 || S-2180 16.50 R 4 21 
XF-25. 90 R 20 26 2205 0 2.00 I 20 31 
XE-40. 1e05UPe Ra 10 ie 26. 1) 2328". 3.00 | I te es 
XI-40 . 103 Aas 10 26 02328. 9.50 I 6 3 
XF-40 1B05 EB 10 26 Dogon 6.00 I 6 ait 
X [6-60 Tel R 10 26 |! 02338. 14.00 I 6 31 
XI-60 . eis R 10 20s olor, = .60 Uae REL 36 
XF-60 Pets R 10 ZOD Lone . 60 R 40 36 
CSI-75 1.40 R 10 ZF Go219. 00 I 5 28 
CSI-75 1.40 in 10 IE) ACY PT™ OU I 5 28 
CSIi-100 te Ses) R 10 20 Opole 1 I 5 28 
CSI-100 lee 733 R 10 DAT 65020. .| 6.00 I 5 28 
CSE-200 Oe Omen ine Omi? yall G50 Le E2007 eal 5 | 88 
CSI-200 340 R 10 OE a7 .| 9.00 S 1 oe 
02 Lae eu I 5 OS e344. - .|13.00 S 1 23 
O2z2e tao) I 5 DS ate 2 ae 1.40 R 30 36 
Gols 9.50 ik 5 28 9210 and Celluloid 
G2. .| 9.50 I 5 28 cover eee arOO R 30 36 
661. .|20.00 I 5 28 | 9210 and Paper 
830. aieeeral!) S 20 3h) cover fe 2200 R 30 36 
832. 12.00 S 10 33 04338-C . 1724-00 S 8 32 
O22 hale Ae50 R 10 16 04376-C . 125200 S 8 ap 
922-B . ke) I 10 18 04433-C . .|34.00 S 8 Se 
922-H . FS) I 20 18 A3a4 | 5.00 S 10 33 
922-Ce. ha) I 20 18 ASol © 3.00 S 20 30 
944. 7.00 R 8 16 4338 . VOcAU) S 8 32 
944-B . Belo I 10 18 4376 . 8. 00 S 8 32 
O44-H . “OES I 20 18 || 4433 . 118.00 5 3 32 
944-C , C05: I 20 18 18102. 1750 R 20 OD 
963. 3.00 las Na 15 18105. 70 R 95 36 
981. 2.00 R 30 36 18134. ihe kOe R 40 oD 
ORD eae ord) R 12 fom Sls: (halen Vee 30 oo 
983-B . dato if 10 Lore tT s22 15 1.00 R 30 35 
OSs=H BD I 2 LSet S226" 2.60 R 20 An 
983-C . RIED) I 20 Lape S24 Oe eete eee AeA ty 8 35 
2110 3.00 R 2 20 Filterlite F-100 . 14.00 S 1 23 
C-2110 5.80 lis i 21 Filterlite CF-100 12.50 S 1 03 
58-2110 7.80 R ie 21 Filterlite F-200 . 19.00 S 1 DRS 
2120 4.50 R 8 20 Filterlite CF-200 18.00 S 1 ya 
Ca2120 eeu R 8 Za Filterlite F-300 . 20.00 S 1 23 
S-2120. .| 9.80 R 8 21. Filterlite CF-300 19.00 S 1 23 
PARAS 2 Oe) R 4 20 
C-2130 14500, (eRe 2 FITTINGS 
§-2130. 16.00 is 4 21 Filterlite Chain 
2140-4” 15.00 ne 3 20 DeTitta Pelee ae .40 oe) eae es 23 
JAE UV 15.00 R s 20 R. R. Fixture Chain 
G-2140) .|20.00 R o 21 Den toe ee. 40 Si) eee 21 
C-2140-6” 120.00 R 3 21 Appleton No. 7319 . 60 R 50 ah 
§-2140. . 2200 R 3 peas ELD Ae ee I 30 a6 
m2 140-6" ¢ 22.00 R ra Za ED Ee LD i 30 OL 
2170 A ov) R 8 20 oie UNG NO: 502) P20 R 50 af 
C-2170 8.00 R 8 Zi Uno No. 504 i R 50 aL 
S-9170 10.00 R 8 21 || Uno No. 506. 50 R 50 an 
“ae * 4.50 R 8 30 || 344 FormA . :75 R 30 or 
Pa WEE 8.00 R 8 30 || Bryant 443 . 60 R 50 3H! 
2180 10.50 R 4 20 |! Bryant 444 60 Ry 50 ne 











HOLOPHANE DATALOG 





Holophane Engineering Service: 


The Holophane Engineering Department is composed of two separate branches—The 
Prismatic Glass Design Department and The Lighting Installation Design Department. 


The function of the prismatic glass design department is to design reflecting and 
refracting equipment for special purposes and it is the function of the installation design 
department to specify the proper use of this equipment. In the design of a highly scien- 
tific product, such as Holophane, it is necessary to make certain assumptions as to its 
method of use and in order to get the maximum service from such equipment, its installa- 
tion must conform to the instructions of the designer. It is for this reason that the Holo- 
phane Company maintains a competent engineering staff to co-operate with those who con- 
template the use of Holophane equipment. This is a part of Holophane service and is 
gladly given in full faith in, and unalloyed devotion to, the philosophy— 


“He Profits Most Who Serves Best ”’ 


Holophane Publications: 


The following Special Booklets may be obtained from the Holophane Company: 


Bulletin No. 150 —The New Era in Street Lighting. 
x “250 —Scientific Street Lighting. 

343A—The Holophane Lightmeter. 

344. —Modern School Lighting. 

; “350 —Streets That Are Safe. 

396 —The Holophane Filterlite. 

rs. “357 —4-Way and 2-Way Refractors. 


is 379C—Holophane Datalog (Commercial Edition). 
i “384 —Color Lighting and Display Work. 

L “387 —Holophane Twilite Hospital Luminaire. 

a “394 —Industrial Lighting Book 

444 —Modern Retailing Success. 


The following folders are also available: 


Form No. 346—Holophane Vapor-Proof Reflector Globes. 
348—Holophane Reflector-Refractors (R-r). 


“  * -349—Holophane Auto Lens No. 855 Size Chart and Price List. 
351—Holophane Yard Lighting Refractors. 

“ *393—Holophane No. 944 Enclosed Window Reflector. 
 -399—Holophane Filterlite Units. 

“ * -400—Holophane No. 922 Window Reflector. 

401—Light for Industrial Efficiency. 


For copies of these booklets or folders address: 


HOLOPHANE GLASS CO. INC. 
342 Madison Avenue, 
New York, N. Y. 


40 
Printed in U.S.A. 








